4R75E or 4R75W
#17
according to my Ford Transmission manual, The transmission designation was changed in 2004. Several improvements were made; front pump, turbine speed sensor, output shaft ring gear and planetary gear set. 4.6L engines got the 4R70E...... 5.4L engines got the 4R75E, the only difference being the planetary gear set is hardened on the 4R75E.
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#19
according to my Ford Transmission manual, The transmission designation was changed in 2004. Several improvements were made; front pump, turbine speed sensor, output shaft ring gear and planetary gear set. 4.6L engines got the 4R70E...... 5.4L engines got the 4R75E, the only difference being the planetary gear set is hardened on the 4R75E.
#20
Hi, I do not intend to hijack this post but I will play an interesting topic and only wish to ask a question to these friends specialists transmission, requesting advance apologies to jtarms45: You may install and work properly one 6R80 by the 4R75 in a FX4 2007 I understand expedition 2008 brought him? This concern comes because my truck is supercharged and I see many recent truck with 6R80 they get a better response. I'm not sure what I just stated and please, if I can help, I would appreciate .Thanks,
#21
For the 4R75E in the 3 valve F150 what do you recommend for a transmission rebuild and upgrade? I see lots of info on the 4R70W, but not much on the 75E. I want to have the transmission rebuilt and upgraded to handle more HP, so what would I ask for both hard and soft parts?
how much HP do you anticipate making? a stock rebuild with OEM parts can handle 500 HP, over 500 HP the forward clutch and direct clutch need to upgraded, which usually requires machining to add clutches.
Last edited by mitymerc; 12-29-2014 at 10:38 PM.
#22
Hi, I do not intend to hijack this post but I will play an interesting topic and only wish to ask a question to these friends specialists transmission, requesting advance apologies to jtarms45: You may install and work properly one 6R80 by the 4R75 in a FX4 2007 I understand expedition 2008 brought him? This concern comes because my truck is supercharged and I see many recent truck with 6R80 they get a better response. I'm not sure what I just stated and please, if I can help, I would appreciate .Thanks,
#23
again... its essentially the same transmission internally, so the mods that apply to the 4r70 also apply to the 4r75.
how much HP do you anticipate making? a stock rebuild with OEM parts can handle 500 HP, over 500 HP the forward clutch and direct clutch need to upgraded, which usually requires machining to add clutches.
how much HP do you anticipate making? a stock rebuild with OEM parts can handle 500 HP, over 500 HP the forward clutch and direct clutch need to upgraded, which usually requires machining to add clutches.
#24
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